A multitude of structural health monitoring options are currently being investigated to
address the reliability of concrete infrastructures at different stages of their service life. This …

Humidity sensing is of great significance in agriculture, pharmaceutical, medical,
environmental, etc. Among various types of materials, semiconductor metal oxides (SMOs) …

Optical humidity sensors have evolved through decades of research and development,
constantly adapting to new demands and challenges. The continuous growth is supported …

This biannual review covers the time period from January 2004 to December 2005 and is
written in continuation of previous reviews (A1-A3). An electronic search in SciFinder and …

A review of the use of fibre-optic sensor technologies for humidity sensing is presented. The
paper first provides a brief overview on the basic concept of what is meant by humidity and …

A fiber optic relative humidity (RH) sensor based on the tilted fiber Bragg grating (TFBG)
coated with graphene oxide (GO) film was presented. Amplitudes of the cladding mode …

In this work a high sensitivity optical fiber humidity sensor (OFHS) is presented. The
configuration chosen for this purpose is a cladding-etched single mode optical fiber (CE …

Volatile organic compound (VOC) detection is a topic of growing interest with applications in
diverse fields, ranging from environmental uses to the food or chemical industries. Optical …

Fiber optic humidity sensor based on an in-fiber Mach–Zehnder interferometer (MZI) coated
with graphene oxide (GO)/PVA composite film was investigated. The MZI is constructed of …

Hydrogel-integrated optical fiber sensors have garnered momentous interest due to their
optical properties, biocompatibility, and biodegradability. Integrating active materials with …